Respiratory tree is present in echinoderms eg. sea urchin it helps in respiration and protection from predators by evisceration .
the terminal first
alvioli
The trachea is the main trunk of the respiratory system. It is the central passageway from which the respiratory tree branches.
how does the respiratory system work
The respiratory zone of the tracheobronchial tree includes the respiratory bronchioles, alveolar ducts, alveolar sacs, and alveoli where gas exchange occurs. This is where oxygen is absorbed into the bloodstream and carbon dioxide is released from the bloodstream.
how does the respiratory system work
Bronchioles
The Respiratory system is very closely linked with the circulatory system.
lung tissue has what consistency?
If the respiratory system is not working, nothing is working.
The bronchial tree, specifically the bronchioles, terminate in a grape0like cluster of respiratory structures. These structures are the alveoli.
The bronchial tree, specifically the bronchioles, terminate in a grape0like cluster of respiratory structures. These structures are the alveoli.